title: What's a good Systems Interface Specification template?
body: <p>A client has a number of disparate systems that they are planning to link together and have asked for a set of system interface specifications that would document the data and protocols used to interface the different parts.</p>
  
  <p>The interfaces are between processes not between users. </p>
  
  <p>Any recommendations for a template that we could use to document the system interfaces?</p>