On the criteria to be used in decomposing systems into modules
Communications of the ACM
Higher Order Software A Methodology for Defining Software
IEEE Transactions on Software Engineering
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One of the least talked about and most costly phases of the Systems Life Cycle is Maintenance. This paper gives an overview of maintenance and some alternative ideas on how we should address the subject. Topics like Reliability, Availability, Capability and Maintainability are viewed in what may be a new light for some. The paper explains why Software Engineers must consider each of these topics as functions of the deliverable system. The purpose of the paper is two-fold: (1) To give the Computer Science or Engineering student some insight into the application world; (2) To give the individual involved in systems development or maintenance some alternatives regarding that 70%± of the Systems Life Cycle cost.