I like the Teamcenter Requirements Manager. It also has a structure manager where you create an engineering bill of materials and manufacturing process planning. There is something like service lifecycle management. That is where the maintenance data is stored. There are multiple modules. ALM Polarion is also a Siemens solution. It is a separate product, but it's part of the Siemens portfolio.
This solution works, but it has many issues. Smaller companies are coming up the cloud-based PLM solutions that may replace larger PLM companies like PTC or Siemens in the future. It has some performance problems, and the maintenance is too expensive. Recently, we completed a project, and it cost almost $6 million to upgrade.
