Collaboration meaning: The collaboration branch is different

The collaboration branch is different also from the others for being able to call ADF pipelines from logic apps or anything else external to ADF (after using the publish button). Sequence diagram describes a set of interactions sequences. opt fragment in diagram means that the diagram describes two possible interactions sequences - one with the interaction in the opt fragment and another without this interaction. The condition that describes may range from some deterministic calculation (2+2==4) to user choice (red pill selected) to random event (atom decays). It's up to diagram author what the intention is. In github, I often see these terms and in many cases they are used interchangeably. Can someone please explain the difference between a contributor and a collaborator? What do the following terms mean? SaaS PaaS IaaS? There are various cloud services available today, such as Amazon's EC2 and AWS, Apache Hadoop, Microsoft Azure and many others. Which category doe...