(by (author), (publisher info))

Axioms and Principles that define software quality (p83)

Axiom of Separation of Concerns
Axiom of Comprehension: accommodate human cognitive limitations
Axiom of Translation: correctness is unaffected by movement between equivalent contexts
Axiom of Transformation: correctness is unaffected by replacement with equivalent components
Principle of Modular Design
Principle of Portable Designs
Principle of Malleable Designs
Principle of Intellectual Control
Principle of Conceptual Integrity

"Greek and Roman" * Robert Glass (p64)

Greek: individual acts as his own agent*you are an individual, an independent contractor
Roman: one's first duty was to the group, clan, class or faction upon which one depended for status: gravitas. This meant sacrificing oneself for the good of the organization, and giving up one's individuality and identifying closely with the group. You are not an individual*you are owned by the organization body and mind, 24 hours a day. Rewards: the organization provides you with security, money and power.

everything is an object
simulation of a problem domain drives object discovery and definition
objects must be composable
distributed cooperation and communication must replace hierarchical control as an organizational paradigm

responsibility
   * maintain and supply on request one or more units of information
   * perform a computational task
   * report on or update the state of an object
   * coordinate other objects
message
   * imperative
   * interrogatory
   * informational
interface/protocol

(Not sure of the relationships around...)
Inheritance? Pattern? Delegation? Polymorphism? Encapsulation?

total # of objects < 2000
each object is an autonomous executable entity
each object has unique ID and unique "address"--each object has its own URL
objects are nothing more than collections of other objects--messages & methods become first-class objects in their own right
objects are fully executable but use VM for primitive hardware services
self-evaluating rules -> source code statements are first-class objects

Tags: language concept reading books object

Last modified 16 December 2024