Package Manager Design

Index: openacs-4/packages/acs-core-docs/www/apm-design.html =================================================================== RCS file: /usr/local/cvsroot/openacs-4/packages/acs-core-docs/www/apm-design.html,v diff -u -r1.23 -r1.24 --- openacs-4/packages/acs-core-docs/www/apm-design.html 11 Dec 2003 23:08:45 -0000 1.23 +++ openacs-4/packages/acs-core-docs/www/apm-design.html 4 Feb 2004 16:47:32 -0000 1.24 @@ -1,10 +1,10 @@ -Package Manager Design

Prev	Chapter�11.�Kernel Documentation	Next

Package Manager Design

By Bryan Quinn

+Package Manager Design

Prev	Chapter�11.�Kernel Documentation	Next

Package Manager Design

By Bryan Quinn

OpenACS docs are written by the named authors, and may be edited by OpenACS documentation staff. -

Essentials

OpenACS Administrator directory
Package Manager Requirements
Packages
ER diagram
Tcl API
- -apm-procs.tcl
- -apm-install-procs.tcl (Supports installation of packages)
- -20-apm-load-procs.tcl (Bootstraps APM for server startup)
- +
Essentials
- OpenACS Administrator directory
- Package Manager Requirements
- Packages
- ER diagram
- Tcl API
  +apm-procs.tcl
  +apm-install-procs.tcl (Supports installation of packages)
  +20-apm-load-procs.tcl (Bootstraps APM for server startup)
  apm-admin-procs.tcl (Supports APM UI)
- PL/SQL file
  apm-create.sql
Introduction
In general terms, a package is a unit of software that serves a single well-defined purpose. That purpose may be to provide a @@ -87,7 +87,7 @@ packages for other OpenACS users to download and install.
For a simple illustration of the difference between ACS without APM (pre-3.3) and ACS with APM (3.3 and beyond), consider a hypothetical ACS installation that uses only two of the thirty-odd modules available circa ACS -3.2 (say, bboard and e-commerce):

[D]
APM itself is part of a package, the OpenACS Kernel, an OpenACS +3.2 (say, bboard and e-commerce):
APM itself is part of a package, the OpenACS Kernel, an OpenACS service that is the only mandatory component of an OpenACS installation.
Competitive Analysis
The OpenACS is a platform for web-based application software, and any software platform has the potential to develop problems like those described above. Fortunately, there are many precedents for systematic solutions,