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5th April 20234th August 2023

April Newsletter 2023

Welcome to the April 2023 newsletter from 3SL!

This newsletter contains a mixture of news and technical information about us, and our requirements management and systems engineering tool “Cradle”. We would especially like to welcome everyone who has purchased Cradle in the past month and those who are currently evaluating Cradle for their projects and processes.

We hope that 3SL and Cradle can deliver real and measurable benefits that help you to improve the information flow within, the quality and timeliness of, and the traceability, compliance and governance for, all of your current and future projects.

If you have any questions about your use of Cradle, please do not hesitate to contact 3SL Support.

Is SaaS Beneficial?

Traditionally, software was installed on in-house computers. You managed the hardware that ran the software, ensured the integrity of the data created with the software with appropriate backups, and applied all the operating system and firmware updates needed to keep the system running properly.

Increasingly, individuals and companies simply want to use software, and have someone else host it, ensure the integrity of the data that they create, and manage the resilience of the underlying hardware and software infrastructure.

This is SaaS – software as a service.

Most large software companies try hard to force all customers to use SaaS by buying subscriptions. For example, although it is possible to buy Microsoft and Adobe products to install in-house, you have to work hard to find the part of their websites where such purchases can be made.

SaaS is charged on a per user per month basis for the functionality used. You pay more as you add users and as you access more functionality. You can stop the service when access to the software will be removed, all your data will be deleted, and you will stop being charged. This is all reasonable.

Some SaaS Benefits

SaaS brings benefits including:

You do not need to provide resources (hardware or VMs) to run the software
You do not have to maintain these resources nor provide the staff to perform this maintenance
You can easily react to short term needs
You do not need to provide integrity for the data that is created
You do not have any costs if you don’t need the resource for a while

Problems with SaaS

Of course there are also disadvantages to SaaS:

It will be more expensive than deploying in-house, typically after 2 years
You have no direct access, so you are reliant on your SaaS provider being responsive and complying with the SLA – you do have a Service Level Agreement don’t you?
You cannot directly interact with the software and must rely on the SaaS provider’s competence with the software and their understanding of what you want to achieve. This could cause delays or errors.
You do not have physical control over your data or the hardware that hosts it
Your data may be exposed by being given to third parties without your knowledge or consent, given such as the US Patriot Act (parts of which are still in effect) and the collaboration between groups including the EU and 5 Eyes – this includes all data centres managed by US companies regardless of their location, so be mindful when considering US-owned Infrastructure as a Service such as, but not only, Azure and AWS
You have to manage the IP ranges that are to have access, unless your SaaS allows access by the entire Internet

Is a Cradle SaaS Worth It?

This depends on your situation. In general:

if you do not have an IT organisation, or
if Cradle is too small to be applicable to your IT organisation

and:

if you are confident that 3SL understands Cradle and will be responsive to your needs and
if the SLA and Cradle SaaS are acceptable (see the 3SL Cradle End User SaaS Agreement – EUSA), and
you have agreed a location for your data (within 3SL or in a SaaS Virtual Private Cloud – VPC – that 3SL will build for you in an agreed location)

then, yes, SaaS is a good solution as it allows you to concentrate on using Cradle to the benefit of your projects and leaves the management of the Cradle infrastructure to others.

Fixed IPs for Cradle SaaS

We do not want a Cradle SaaS to be accessible by the entire Internet. Each Cradle SaaS includes an external firewall that specifies the IP addresses or ranges (CIDRs) of the locations that are allowed access. Access from any IP address is ignored if it is not in this list of allowed locations.

This method works well except when a user’s IP address is not fixed. A user’s IP address is not fixed if they access the SaaS from either:

many locations, such as customer sites, hotel rooms, train stations, public tea rooms, or
a domestic Internet connection where the ISP assigns a different IP address to the user every time that they connect to the Internet

In these cases, 3SL will consider the size of the IP address range. A small IP address range may be acceptable to both you and 3SL. For example, the CIDR:

78.37.252.0/22

is a range of 1,024 IP addresses 78.37.252.0 to 78.37.255.255 inclusive. In general, 3SL will not accept CIDRs of more than 64 addresses.

The solution to this problem is to have a fixed IP address.

Fixed IP Addresses and VPNs

If the end user’s location is not fixed or does not have a fixed IP address, they can get a fixed IP address by:

An organisation may provide a VPN. If so, then route the user’s connection to the Cradle SaaS over this VPN. This has two advantages. First, the connection from the end user’s computer is encrypted by the VPN, so it can be used safely from highly insecure locations such as tea shops or hotel rooms. Second, the connection to the SaaS will be from the organisation’s fixed external IP address. This is transparent to the end user. The end user simply starts the VPN as they will for all company work, and then connect to the Cradle SaaS.
A fixed IP address can be purchased from a range of providers, such as are listed here
For an extra fee, 3SL can provide a reverse proxy server that provides a VPN. The end user connects this VPN using authentication details from 3SL, typically a certificate issued by 3SL. The connection to the Cradle SaaS will come from the reverse proxy server, which has a fixed IP address. This method is also secure as it uses an encrypted VPN connection, and so it is safe to use from insecure locations.

Happy Easter

Easter, also called Pascha or Resurrection Sunday, is a Christian festival and cultural holiday.

We would like to wish all our customers, prospects, distributors and suppliers a Happy Easter:

St George’s Day

Saint George’s Day is the feast day of Saint George, celebrated by Christian churches, countries, and cities of which he is the patron saint:

Depicting the legend of St George in an ACD — St. George as a UML Activity Diagram (ACD)

If you ever want a reminder of the legend of St. George the diagram above may be handy. For more information see the Cradle help section for ACD

We would like to wish all our customers, prospects, distributors and suppliers a Happy Saint George’s Day.

World Autism Acceptance Week

World Autism Acceptance Week is on Monday 27th March to Sunday 2nd April with Autism Awareness Day on 2nd April. The theme for 2023 is colour.

The National Autistic Society provide support for autistic adults and children and their families.

Parental Alienation Awareness Day

Parental Alienation Awareness Day is on 25th April each year. This is a global campaign to raise awareness of Parental Alienation. It is an opportunity for parents, grandparents, extended family members or friends to come together to access information, advice and to enable connection and support for others affected by Parental Alienation.

Social Media

Twitter

We helped to celebrate and raise awareness on both #InternationalWomensDay and #WorldDownSyndromeDay.

#hensoldt were exhibiting at #HeliExpo (booth 5614) where they talked about airborne portfolio covering mission systems, situational awareness and certified lightweight flight data recorder. Hensoldt also won contracts from #Hyundai Heavy Industries to provide six offshore patrol vessels and two corvettes which are currently being constructed for the Philippine Navy.

Congratulations to the team at @SafranSeats who had been recognised by the Chartered Institute of Personnel and Development at the CIPD Wales Awards for being the Best Wellbeing Initiative in the region for a large company.

@MirionHQ were exhibiting (booth 3) at the Cyber Security Implementation Workshop where they provided an insight into their solutions for cyber security, command and control and lifecycle management.

@Roche and Lilly have joined together to enhance early diagnosis of Alzheimers disease.

Looking Back!

Last month we discussed:

We would also like to thank all attendees on our Document Publisher course which we provided in March.

Still to Come this Month

Risk Management training course

31st March 202323rd March 2023

Next and Previous

When a query is run in WorkBench, the tool will return a list of the items matching the criteria specified.

As a Cradle database can contain any number of items of information a query could find 0 to 1 million items.

The time taken to find so many items could be excessive. Therefore, queries find and return items from the database in blocks. The default size of a block is 1000 items but can be extended to 8000 items in UI Control user preferences:

User Pref Options — Retrieve Item Options in User Prefs

This means that when you run a query it will return at most N items.

Navigating between Blocks of Data

When the block is shown in the WorkBench UI, it is preceded by Previous… and followed by Next….

If you select these, then the query is re-run to find the next block or the previous block of items.

In this example, clicking the Next… option will retrieve the next set of items in the query:

Selecting Previous… again will return you to the previous block of items.

Reporting Items

If you are creating a report or publishing a document using a query, it is likely that you would NOT wish to be restricted by blocks of items.

Reports allow you to specify:

Selected items – items highlighted in the query
All items in this set – the block of N items
All matching items in database – the totality of items matching the query criteria
Publish Table options

16th March 202315th March 2023

Baseline Integrity Check

In certain situations, it may be necessary to stop a baseline from being closed if a condition has not been met. For example, if items have been registered in the baseline but items that are linked have not been.

Having this option set will ensure that all relevant data will appear in your completed baseline.

Setting the Baseline Item Integrity Check

To set this option, navigate to the Configuration Management options in Project Setup and tick the Baseline Item Integrity Check option:

You also have the ability to set a rule for the direction of the link/dependence:

All items linked to baselined items are also baselined (default option)
Baselined items’ source items are also baselined
Baselined items’ destination items are also baselined

Exclusions

You can also exclude item types or link types from being bound by this setting:

Failing the Check

If any of the checks fail, an error message will be shown with a report showing the items that caused the close baseline operation to fail:

24th February 20236th March 2023

3SL Cradle Cloud Services

Our Cradle “cloud” services (SaaS – Software as a Service) provide access to 3SL’s Requirements Management and Systems Engineering tool – Cradle using remote servers. This means there is no need to install the software on your company systems.

They are also a cost effective way to get up and running with Cradle.

3SL offers a choice of Cradle-Enterprise systems delivered as Cradle cloud services from a choice of servers, in a range of fixed term subscriptions, each accessed by your choice of concurrent users.

The Cradle service provides Cradle directly to the users from a remote environment managed by 3SL:

In a matter of days from order
With no software installations
Needing no, or little, work from your IT

What is the Cradle Service?

The Cradle service:

Is a self-contained set of Cradle and third party software tools
Is integrated with your filesystems and printers
Is secure and resilient
Needs no administration by your organisation
If you wish, is linked to your corporate email
If you wish, is run on servers exclusive to you

The Cradle service delivers the latest version of Cradle, and related applications directly to user’s desktops. Cradle and the other tools appear in windows like any other application that a user runs locally. But Cradle, and your databases, all run on remote servers inside the Cradle service.

You can have any number of databases. They, and the data inside them, are private to you. 3SL will manage the service so you can be assured that it is always available.

You can choose a lower cost shared service or a dedicated service. In the shared service, you share servers at 3SL in the UK with other subscribers, keeping privacy of your data and databases. In a dedicated service, 3SL creates a virtual private cloud (VPC) of servers using a third party hosting provider that are exclusive to you and located in any geographic area that you choose.

All databases are backed up automatically with a 3 hour RTO (Recovery Time Objective) and an 8 hour RPO ( Recovery Point Objective). Backups are held for 8 months.

Cradle Subscriptions

The Cradle system types available as a subscription are:

Cradle Enterprise-RM Basic – requirements management including the ability to generate metrics and dashboards
Cradle Enterprise-RM Pro – requirements management including the ability to generate metrics, dashboards and produce quality documentation
Cradle Enterprise-SE Basic – systems engineering including systems modelling and the ability to generate metrics and dashboards
Cradle Enterprise-SE Pro – systems engineering including system modelling and the ability to generate metrics, dashboards and produce quality documentation

The Cradle subscriptions can be packaged into simple fixed term durations ranging from one month to sixty months. This allows you to budget and ensure cover for a whole host of proejcts. You will be free to finish or renew as your project needs at the end of the term.

Cradle SaaS in a Nutshell

Choose from a range of Cradle Enterprise systems to provide the capabilities you need
Choose a shared or dedicated host environment
Specify the number of users that you need to have access to the environment
Specify how long you want the service for
Work in any number of databases
Upload and download data and results easily from your local IT systems
Print directly to your local devices if needed
On-boarding service to help you get started
Off-boarding service to preserve your work before your subscription ends
Add extra terms and change who can access the service at any time

For pricing of the Cradle subscriptions please visit our website.

27th January 202312th January 2023

Controlling the Cradle Access Mode

All Cradle users have a read-write access mode by default, and as such can create and modify information in their project databases, subject only to Cradle’s security and access control mechanisms such as privileges, classifications, skills, user types and so on.

There are no dedicated read-only user accounts in Cradle. However, there is a mechanism to specify which user accounts should be read-only and which should be read-write for a specified project.

This mechanism might be useful in protecting the consumption of your read-write connections.

Cradle User Control File (UCF)

Cradle contains a cradle_users file that is stored in the admin directory of your Cradle installation. This file allows your System Administrator to control the access mode that a user has for specified projects.

The file allows you to specify the Cradle username, the project code and the access mode separated by a space or tab characters:

Cradle-Username Project-Code Access-Mode

where:

Cradle-Username – is the Cradle username to be controlled, in uppercase or lowercase, and at most 40 characters
Project-Code – the project in which the username is defined, specified in uppercase or lowercase, and at most 4 characters
Access-Mode – the access mode to be assigned whenever anyone logs in to the specified project with the specified username, as:
- R – the username is always to be read-only
- W – the username is always to be read-write
Example cds_users file
The entries in this file override any -ro or -rw command line options to Cradle tools.
This file is empty by default, so all users would have the ability to connect to databases read-write unless specified otherwise.

30th September 202229th September 2022

Filtering Cross References in a Query

Filtering cross references in a query is easy within Cradle.

Showing Cross References in a Query within Cradle

In this example we will create a query that shows links between all system requirements linked to all verifications.

Create a query that shows all system requirements
Then create a nested view which shows links to verification items

View Details dialog filtering cross references — View Details Dialog

This will display as shown below:

In this example 97 items are returned.

Show only Items that have a Linked Item

To only show items that are linked to one or more verification item, edit the Query Details dialog:

Query Details filtering cross references — Query Details dialog showing Links

which displays as follows:

As you can see the list of items has now reduced to 43.

Show Items where Linked Item has a Category set

To only show items where the verification has a PASS value set in a category, a query is created.

Create a query that only shows verifications that have a Pass value set:

Query Details showing category set — Query Details dialog showing Category set to Pass

Refer to this query in the Links tab of the Query Details dialog. Note that instead of using To Items set to Of Type, we have chosen Matching Query:

You can now see the list has reduced to 28 items. These being the system requirements that have a Pass for one or more of the linked verifications.

31st August 20223rd February 2023

September 2022 Newsletter

Welcome to the latest newsletter from 3SL that provides a mixture of news and technical information about us, and our requirements management and systems engineering tool “Cradle”. We would especially like to welcome everyone who has purchased Cradle in the past month and those who are currently evaluating Cradle for their projects and processes.

We hope that we, and Cradle, can deliver real and measurable benefits to all of the exciting development projects that we see every day through your regular contacts with our support team. If you have any problems, please do not hesitate to contact 3SL support here.

Showing Cell Titles in Views

Sometimes when displaying a nested view the cell titles take up a lot of space on the screen.

Within the View Details dialog you have the option to choose whether you want to display the cell titles:

Show cell titles option — Displaying cell titles in views

As you can see you can choose to either:

Show the cell titles
Hide the cell titles
Show the cell titles only when the view is top-level

You can change the visibility of any of the component views that are being used to show linked items. In practice, most people either hide everything or show everything.

For further information on views please see our online help page.

Help with Cradle-7.7

Following on from our recent Cradle-7.7 release, if you are not already a customer and would like more information about Cradle, you can download the software and a free evaluation licence. You can find this on our website, or you can request a webinar. If you are a customer and would like to upgrade, please contact 3SL for a Security Code and for any assistance you may require with the upgrade.

Upcoming Training Courses

We still have places available on our September Risk Management course. Learn how to identify, analyse, evaluate, treat and monitor the risks associated with activities or events within your business. This course is designed for project team leaders or managers who administer and manage risks.

To book a place on one of our online courses please click here!

G-Cloud 13

The UK government Digital Market Place Cloud Software applications offer a wide range of software aimed at fulfilment of central and regional government contracts, government agencies’ work and local authority use. This ranges from Schools, education and libraries to Fault management, monitoring and alerting or Marketing. 3SL (Structured Software Systems Ltd.) continue our presence in G-Cloud 12 but are proud to announce that Cradle has been successful on G-Cloud 13 and will be available as SaaS through G-Cloud 13 for agile and phase-based projects under the Information and communications technology (ICT) services when it goes live in November.

Services

Cradle offers two packages Cradle Software as SaaS and Cradle Training and Consultancy.

Software

The software package includes Cradle licences, a pre-defined schema and a comprehensive support package. This can be used in both unclassified (IL0) and OFFICIAL (certified IL3) deployments and covers the following elements:

Agile Collaboration
Application Lifecycle Development
Application Lifecycle Management
Agile Software Development
Agile Software Management
Business Analysis
Business Process Modelling
Defect Tracking
Enterprise Architecture
Integrated Risk Management
Integrated Test Management
Lifecycle Management
MBE Model Based Engineering
MBSE Model Based Software Engineering
MBSE Model Based Systems Engineering
Requirements and Testing
Requirements Engineering
Requirements Management
Risk Assessment
Risk Compliance
Risk Management
SysML Modelling
Systems Engineering
Test Execution
Test Management
Test Planning
UML Modelling

Cradle Training/Consultancy

Consultancy
Administration Training
Fundamentals Training
Advanced Lifecycle Training

Prices start from as little as £50.00 per user per month. Including email and phone support and full documentation included. Optional onsite support and training is available. This can be supplied on Windows® or Linux®.

Customisation

A wide range of user customisation is available including:

Items’ (attributes, links and properties)
Display of chosen data and layout through queries, views, forms,
Processing data to give graphs, reports, documents, metrics, KPIs/dashboards, process
CM (Configuration Management) system workflows
UI (User Interface) layout and content
Authentication and access control

Details

For details, see here:

Software
Training/Consultancy

or search for 3SL Cradle. For an overview of Cradle, see our video here: We look forward to helping you achieve success on your future projects, or migrating existing ‘manual’ or disparate works into a fully encompassed solution.

2nd August 202216th February 2023

August 2022 – Newsletter

Cradle-7.7 – Released

We are pleased to announce the release of Cradle-7.7 which is available now for download from the downloads section of the 3SL website. This is the latest version of Cradle.

3SL customers with active maintenance have been sent an e-mail notification, and details of which of their enhancement requests and bug reports are included in this new release. This is a significant Cradle release that increments the Cradle minor version number from 7.6 to 7.7. This means that the Security Codes for Cradle-7.6 or earlier will NOT work with this new Cradle-7.7 release. Therefore, if you want to upgrade to Cradle-7.7 then you MUST contact 3SL Support and request a Cradle-7.7 Security Code since your existing Cradle-7.6 Security Codes will NOT work with this new release.

New Cradle-7.7 Capabilities

This release contains a range of new capabilities, including:

Snapshots
Metrics added to graphs
New header option in views
New reports
Annular dial type added to Dashboards
Precision option added to Dashboards
Ability to test email setup from User Preferences

These new capabilities are shown below. For further information please refer to the Release Notes.

Snapshots

A snapshot is a read-only copy of all the information in a Cradle database at a specific point in time that can be viewed, in isolation, at any point in the future.

Snapshots can be created and selected from the Project tab in WorkBench:

Project ribbon in WorkBench — Snapshot options in WorkBench

Snapshots can also be created via the command line using c_prj.

When a user selects a snapshot, their access to information, cross references and definitions are determined by the contents of the user’s profile in the database, regardless of whether or not the user has a profile in the current snapshot and regardless of the contents of that user profile (if any) in the snapshot.

Snapshots are deleted from Project Manager or the command line (c_prj).

Metrics in Graphs

Cradle-7.7 includes a new type of graph which shows metric coverage or count of items with different categories set or unset. This is called a metric graph. An example is shown below:

Header Option in Views

A new Header option is now available in the dialog. This provides a way of showing grouped and coloured headings when output. Example output is shown below:

Example Output showing coloured header — Example output from WorkBench showing a coloured header

New Reports

A new Baseline Summary List report has been included in this release. This outputs each baseline on it’s own row in a table.

The Baseline Summary report has been renamed to Baseline Summary Compact.

A Sort by filter has also been added to both the Baseline List report, Baseline Summary List report and the Baseline Summary Compact report. This provides the option to sort by the baseline name, when the baseline was opened or when the baseline was closed.

Report Details Dialog showing Sort by options

Annular Dial Type in Dashboards

A new dial type has been added to dashboards – Annular %.

This is an annular percentage of a single dashboard bandset within which the KPI resides:

Precision Option in Dashboards

A Precision option has also been added to dashboards. This sets the count of numbers displayed around a dashboard dial:

Test Email Setup

The setup of emails can now be tested from User Preferences by selecting the new Test Email button:

Pressing the Test Mail button produces the Mail Test dialog where you choose an email recipient and whether you want to send the test email in plain text.

Please note the only user names shown in the Recipient drop down are Cradle users in the project who have an email address defined in their User Profile.

Download

You must contact 3SL for new Security Code(s) for Cradle-7.7. Cradle-7.7 will not accept Security Codes from Cradle-7.6 or any previous release.

Cradle clients (WorkBench, Web Access, Document Publisher for instance) and server (Cradle CDS) versions cannot be mixed. Therefore, you must upgrade all Cradle installations to 7.7.

Cradle-7.7 databases do not have the same format as Cradle-7.6 databases. Hence the Cradle-7.7 release includes a database converter for the transition from Cradle-7.6 to Cradle-7.7. Full details are available in the 7.7 release notes, and updated manuals in addition you can always contact support@threesl.com .

Single User Products

Please note that there are no maintenance services for single-user Cradle products. Therefore, if you have purchased any of the single-user Cradle-7.6 products:

- Cradle-RM Desktop
- Cradle-RM Pro
- Cradle-SE Desktop
- Cradle-SE Pro

then you will not be able to request a new Cradle-7.7 Security Code. If you want to update your single-user Cradle system to the new Cradle-7.7 release, then you must buy the new Cradle-7.7 release.

Help with Cradle-7.7

In conclusion, we’re pleased with the new capabilities in Cradle-7.7 most importantly we hope you will benefit by upgrading. If you are not already a customer and would like more information about Cradle, you can download the software and a free evaluation licence, find more on our website, or request a webinar. If you would like to read some independent reviews feel free to use your favourite search engine or take a look at Capterra.

Upcoming Training Courses

We still have places available on our August Requirements Management training course. The dates are 15th to 18th August. This is a great opportunity for small teams, or a couple of new team members to get started with RM and Cradle. Don’t worry if you can’t make the August RM course, we are holding another one in November.

In September we then have our Risk Management course. Learn how to identify, analyse, evaluate, treat and monitor the risks associated with activities or events within your business. This course is designed for project team leaders or managers who administer and manage risks.

To book a place on one of our online courses please click here!

22nd July 2022

Testing Cradle on additional platforms

With the release of 7.7 coming very soon, we thought we’d test Cradle on additional platforms.

So here’s Cradle 7.7 running on a Steamdeck, in Desktop mode.

As SteamOS is based on Arch Linux, our 64 bit Linux version can be installed.

Both the CDS and WorkBench are running on this very capable device. A keyboard and mouse may work better than the on screen keyboard.

If you install the service manager (systemd script) then the Cradle Database Server (CDS) will start on boot up of the Steamdeck, so you might not want to do that if its primarily used for Steam. However, once started the CDS will stay running in the background when you switch to Gaming Mode. If you have others connecting to your CDS then they can continue to work while you improve your hand-eye coordination in your favourite game.

Although Steamdeck is not an officially supported platform, you can see Cradle does indeed run on additional platforms

1st April 202214th September 2022

SpeedUpSolR – Review

Solar Power Productivity

We were interested to be provided with a SpeedUpSolR^TM unit. We thought we’d test the claims and share them with you. The device works by “capturing ambient light waves and amplifying productivity software enhancements” We suspect a little has been lost in translation, however the blurb goes on to explain that generally workers want to complete their work more quickly in the daylight saving summer months (in our case anything after GMT turns to BST), in order to make the best of the rest of the day. By capturing the increased sunlight during these hours it can help speed up a your work by using their proprietary algorithm to assist and second guess the text or keys you are about to press. Once finished employees will have completed their schedule ahead of time and will be able to leave earlier benefiting their well-being.

The Unit

Comprising a “bubble matrix silicon cell panel” which uses lenses based on omnidirectional fly eyes, maximum sunlight is captured in unit around 150mm long. The interface is s standard USB connector. The drivers download automatically, as it supports plug and play.

Testing

We connected the SpeedUpSolR^TM to a standard desktop and installed a copy of Cradle. We then closed the blinds on the window to simulate a darker time of day. The unit is balanced atop the monitor facing the window, to achieve maximum exposure. The staff member was then asked to simulate entering data for the requirement they were working on. You’ll see their usual speed of typing. We then opened the blinds to allow maximum light onto the SpeedUpSolR^TM. This allowed the software to start its word guessing and action assisting operations. We think you’ll concur, there is a marked increase in speed.

Software

The software bundled with the SpeedUpSolR^TM includes an average light level monitor with a rolling 7 day count. It suggests that this can be used to co-inside with maximum productivity bursts for employees. It is also noted that by monitoring the peaks, in winter months people who suffer from Seasonal Affective Disorder (SAD) may be able to time their coffee breaks outside to maximise benefit.