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 


EDA & Development


Figure 1:Managed Sheet Concept


released to the vault and its status set accordingly.


A sheet of design circuitry can be formally released into the vault, then be reused in other design projects requiring that same functionality. It means that released design packages, and components, exist in a locked and traceable form within the vault, where they can be managed and reused with accurate knowledge of their provenance and lifecycle state. What’s more, once all released items exist in the vault, including full designs released for prototyping or productions, the inter-relationships are easy to monitor and track. You can then have an immediate view of what model revisions are used in a component, what


component revisions are used in a sheet, what design sheet revision is used in a released design, and so on. When you choose a reusable vault item for a new design, you’ll have a full understanding where it’s been used, as well as its origins and current lifecycle status. Based on server technology, the managed vault system exists separately from the design system’s own project data storage, but can be accessed easily through the design environment itself or from the broader organisation. This provides secure, permission-based access to others in the organization such as procurement, manufacturing and administration. Component choices, for example, can then become a cooperative process with purchasing, and vault-based


design resource data can be easily accessed by company data management systems. From a design reuse view it means that


all reusable items have a high degree of data integrity. You can be sure that an item is the latest revision, you know it has not changed since it was released into the vault, and you can see where it’s used in other design resources. The lifecycle status (prototype, production, etc) sets the reusable item’s approval state and how it can be used, and it’s clear when a sub- item (such as a constituent component) is no longer approved. The concept of releasing design elements to a fully managed vault provides a robust system for implementing truly practical design reuse. And it goes way


beyond simply providing the mechanisms to access predefined design elements. By addressing the key issue of data integrity, the approach eliminates the risks associated with reusing even high level, multi-layered design sections.


In practice it means that valuable design IP can be reused with full confidence in its integrity. The recycling and storage plant might be chugging away in the background, but drinking the glass of reusable water is no longer an act of blind faith or risky bravado – you can now know everything about its contents and viability, and most importantly, that its purity is assured.


Altium | www.altium.com Rob Evans is Technical Editor at Altium Ltd.


pickering


 


 


     


 





 


 


 





    


  


   


  





  


 


   


 


 


  


 





   


  





   


  


  www.cieonline.co.uk Components in Electronics July/August 2011 45


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