Role and Representation of System Requirements in Systems Engineering

We are pleased to announce the third in our new series of white papers that will discuss the role of different types of information in systems engineering processes, and how to deploy each of them in Cradle.

The third white paper in this series discusses system requirements. It is available here:

https://www.threesl.com/downloads/download.php?version=v7.1&section=whitepapers&filename=ra00801-System_Requirements_in_Systems_Engineering.pdf

Visit the Resources section of our website: www.threesl.com for this and many other useful resources!

We hope that this white paper is interesting, the next one will appear quite soon!

Updates to White Papers

We have updated the white papers in our website:

https://www.threesl.com/downloads/white-papers.php

from where you can download the revised white papers related to Cradle:

– Document management
– Project management
– Information assurance
– Reuse and adaptations
– Regulation compliance

and also the white papers focused more on systems engineering concepts and their support in Cradle, specifically:

– Needs in Systems Engineering
– User Requirements in Systems Engineering

We hope that these are helpful!

Visit our site, download the papers and take a look!

Hiding Information

Teams / Skills / Roles and Visibility

Not all data in all projects should be visible to all users and roles. Hiding information in Cradle can be done in a number of ways.

Classification

A hierarchical access control is provided with Item Classifications. These Classification values restrict a user’s ability to see an item based on their clearance level. The values are a sequenced list, those users with a higher classification will be able to see items equal or at a lower classification than the level they hold. The classification is set on an item by item basis.

Screenshot of user privileges dialog
Classifications

Item Types

Entire item types can be hidden from users based on their skill. If you don’t want some users to see finance information, then ensure you create a finance item type. Create and assign a finances skill to this item type and then only give the skill to those who warrant it.

Read Only Items

The same mechanism that controls complete access to an item type can also be used to assign RO accessibility. Regardless of the item’s state (draft/baselined etc.) users are only allowed RO access based on the skill they possess.

Read Only Categories

You can protect certain bits of information within an item from alteration by setting a skill which prevents updates by those without the skill.

Frame Access Control

Frames are used to hold larger blocks of data within an item. These could be paragraphs of text,  binary documents (such as a spreadsheet) or just a date. Access to individual frame types can be controlled by a skill. Users without the skill will either not see the frame at all or will see it Read Only.

Privileges

The privileges a user holds can control whether they can see information based on ownership. The normal pattern being users and the teams they belong to being able to see items owned by the users and their team. Access to information owned by teams to the side, above or below the current user is controlled by the User’s Privileges

Screenshot of user privileges dialog
User Privileges
Article Updated 04/02/2019 – Added images

3SL Has a Good INCOSE Show

The INCOSE 2016 show has now ended and we would like to send our thanks to everyone who visited us during the conference!

We would also like to thank those customers who presented papers during the event that included Cradle screen shots!

As #3SL was very busy during the event, If we were not able to spend as much time with you as you needed, then please contact us through LinkedIn or salesdetails@threesl.com

Once again, we would like to thank everyone for making the INCOSE show a success!

https://youtu.be/bgiQQ0N8bV4

With best regards

July Newsletter is Available!

We are pleased to announce that our July 2016 newsletter is available here:

https://www.threesl.com/pages/news/webletter-July16/index.php

which provides home useful tips for customising your Cradle environment, describes a new range of videos for our Russian colleagues, summarises the SysML support in Cradle-7.1.1 and invites you to visit us on stand B4 at INCOSE 2016.

We hope that you find it interesting and helpful!

Controlling Tree Labels

Trees

Trees are a common way to explore the information in a database and controlling tree labels is important as:

• Any query’s results can be shown in Tree style
• Trees are available for each item type from the Project sidebar
• The Phase hierarchy can contain nodes that run queries whose result item are shown as nodes in the phase hierarchy tree

A default tree view can be set for individual items. This view is used to construct the text label whenever a tree node is added for an item of that type. Any frames, linked items, discussions are ignored.

As shown in the screenshot below, “REQ-1” in the DEMO project as the top level item, using the tree view you can see all items which are linked to REQ-1

Screenshot showing the Requirement hierarchy tree from a query in the DEMO project
Requirement hierarchy tree from a query

Cradle has a default for the labels of the nodes in these trees. This default uses an item’s Identity, Name, Key, Version and Draft attributes. This label may not be what you want to see, particularly if:

• Your items are auto-numbered, so the Identity is generated by Cradle and is not important to you,
• If most of this type of item do not have anything in their Name attributes

You can control the contents of labels in tree nodes. To do this:

1. Login to WorkBench as a user who can modify the schema and can create project-wide views
2. Define a new view that lists the attributes that you want to appear in the labels. This view can include any attributes except calculations and frames. Only the first row in the view will be used. Save the view with Project scope, to ensure that everyone can use it.
3. Start Project Setup from the Project tab, set Options to Item Definitions and select the Item Types tab
4. Select the item type whose tree labels are to be set and choose your view from the Tree view: drop-down list
5. Save the schema and close Project Setup

Now when any user sees any items of this type in any tree, the labels for these tree nodes will only contain the information defined by the view.

Setting up tree labels for item types can be a very efficient tool when using Cradle to help your team save time when browsing through the tree nodes for items types, as this will only show the pre determined information the user is looking for.

Article Updated  – 04/02/2019 – Added image and conclusion

 

Meeting Corporate Style

Match in Style

If you want your reports to match you Corporate style, you can create your own Report Styles in Cradle. Although this example of the Vibrant Corporation takes it to the extreme!

How to set report colour settings
Report Colour Settings
Cradle Reports in colours
Reports

You can save the style and apply it to each report generated throughout Cradle. This applies to HTML and RTF styles, plain text and CSV are not altered. See Cradle help for more details. Whether you are printing a list of items from the database, or the component parts of a data definition or a baseline summary, you can pick from the built in styles or create your own.

Running Reports

Reports can be run from within the Phase hierarchy (great if you need the same report running regularly) or directly through the Reports tool.

 

Updated : September 2020 -additional linksand screen shots