Accession Number : ADA292215

Title :   Characteristics of Higher-Level Languages for Software Architecture.

Descriptive Note : Research rept.,

Corporate Author : CARNEGIE-MELLON UNIV PITTSBURGH PA DEPT OF COMPUTER SCIENCE

Personal Author(s) : Shaw, Mary ; Garlan, David

PDF Url : ADA292215

Report Date : DEC 1994

Pagination or Media Count : 19

Abstract : As the size and complexity of software systems increases, the design and specification of overall system structure-or software architecture-emerges as a central concern. Architectural issues include the gross organization of the system, protocols for communication and data access, assignment of functionality to design elements, and selection among design alternatives. Currently system designers have at their disposal two primary ways of defining software architecture: they can use the modularization facilities of existing programming languages and module interconnection languages; or they can describe their designs using informal diagrams and idiomatic phrases (such as 'client-server organization'). In this paper we explain why neither alternative is adequate. We consider the nature of architectural description as it is performed informally by systems designers. Then we show that regularities in these descriptions can form the basis for architectural description languages. Next we identify specific properties that such languages should have. Finally, we illustrate how current notations fail to satisfy those properties.

Descriptors :   *SOFTWARE ENGINEERING, *COMPUTER ARCHITECTURE, *HIGH LEVEL LANGUAGES, COMPUTER PROGRAMS, DATA BASES, ORGANIZATIONS, SPECIFICATIONS, CIRCUIT INTERCONNECTIONS, MODULES(ELECTRONICS), ACCESS, DISPOSAL.

Subject Categories : Computer Programming and Software

Distribution Statement : APPROVED FOR PUBLIC RELEASE