Incorporating design schedule management into a flow management system

Johnson, Eric W.; Brockman, Jay B.

doi:10.1145/217474.217511

Cited by 9 publications

(4 citation statements)

References 11 publications

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“…Most of the past efforts in the area of CAD frameworks are involved in introducing new systems, techniques or extensions in specific areas of design data management [33,46], design meta-data management [14,24,34], and flow, process and tool management [12,16,18,25,43]. WELD, however, concentrates on providing reliable, scaleable connection and communication mechanisms for distributed users, tools and services.…”

Section: Related Workmentioning

confidence: 99%

WELD---an environment for Web-based electronic design

Chan

Spiller

Newton

1998

Proceedings of the 35th Annual Conference on Design Automation Conference - DAC '98

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Increasing size and geographical separation of design data and teams has created a need for a network-based electronic design environment that is scaleable, adaptable, secure, highly available, and cost effective. In the WELD project we are evaluating aspects of the network integration and communication infrastructure needed to enable such a distributed design environment. The architecture of WELD and the components developed to implement the system, together with performance results, are described and evaluated.

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Section: Related Workmentioning

confidence: 99%

WELD---an environment for Web-based electronic design

Chan

Spiller

Newton

1998

Proceedings of the 35th Annual Conference on Design Automation Conference - DAC '98

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“…In these systems, tools are either directly chosen according to hardwired criteria or they are dynamically proposed at design-time according to the remaining design task. Hercules [1,7] and recent versions of NELSIS [18] enhance these methods to a workflow management which captures both tool and design management aspects. However, as a consequence of their implicit treatment of design planning, during design execution, all these systems detect unsuccessful design attempts only after some unsuccessful design step has already been concretely carried out.…”

Section: Motivationmentioning

confidence: 99%

Backtracking-free design planning by automatic synthesis in metaframe

Margaria

Steffen

1998

Fundamental Approaches to Software Engineering

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Abstract. We present an environment supporting the flexible and application-specific construction of design plans, which avoids the insurgence of unsuccessful design plans at design time, and is thus backtracking-free. During a planning phase the collection of all complete, executable design plans is automatically synthesized on the basis of simple constraint-like specifications and the library of available tools. The designer's choice of the best alternative is eased by a user friendly graphical interface and by hypertext support for the generation and management of plans, as illustrated along a user session. Example application field is the generation of design plans in a CAD environment for hardware design. MotivationTo master the complexity and variety of system-level design, flexible environments are required, which efficiently support reuse, 'design in the large' strategies and teamwork. In particular, a rich collection of design tools with different application profiles is needed to allow an application-specific treatment of complex design tasks. We focus here on a concrete application domain, and consider the functionality of CAD Frameworks. Themselves large and complex software systems, frameworks like e.g. NELSIS [17], CADLAB [10], or the Jessi CAD Framework [11] have succeeded to provide VLSI designers with sophisticated and user friendly project management wrt. data and design execution flow. As such, they are widely used, mainly to enforce standard design plans, i.e. predefined successions of activities (e.g. synthesis, verification, simulation, test pattern generation, and -at the physical design level -placement, routing, binding, etc...) which are carried out to get from a circuit specification through many successive design steps to the corresponding layout masks for physical realization on chips.CAD frameworks are good at enforcing a prescribed plan of design activities, but they still offer little support for advanced, application-specific synthesis of design plans involving a flexible use and combination of available tools. Flexibility is however increasingly needed, since projects become larger, tool functionalities

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“…A common feature provided in flow management systems is the ability to store and trace design metadata, or information about the design, including the history of activities [ten Bosch et al 1991;Brockman and Director 1995;Casotto and Sangiovanni-Vincentelli 1993;and van den Hamer and Treffers 1991]. Johnson and Brockman [1995] focus on issues relating workflow management and schedule management. Another approach to design management expressed by Jacome and Director [1992] views the design process not in terms of flows, but as a series of design problems to be solved.…”

Section: Cad Frameworkmentioning

confidence: 99%

Measurement and analysis of sequential design processes

Johnson

Brockman

1998

ACM Trans. Des. Autom. Electron. Syst.

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As design processes continue to increase in complexity, it is important to base processimprovement decisions on quantitative analysis. We describe the development of an analytical approach for evaluating sequential design-process completion time and for determining the sensitivities of design time with respect to individual task durations and transition probabilities. Techniques are also detailed for collecting process metadata and calibrating a design process model. Example applications illustrate the use of the methodology in analyzing and improving software and hardware design processes.

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Incorporating design schedule management into a flow management system

Cited by 9 publications

References 11 publications

WELD---an environment for Web-based electronic design

WELD---an environment for Web-based electronic design

Backtracking-free design planning by automatic synthesis in metaframe

Measurement and analysis of sequential design processes

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