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by pegas1
2117 days ago
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One aspect left out is upgrading: can you always distribute new features to all tenants at the same time? If a new feature requires some training or organizational change, then you need to deploy at the moment agreed on with the tenant. From this point if view, models 1. and 3. are viable. If extensions are rare, you can keep a switch for each and separate upgrades on model 4. However, if you want changes on switch, then you have to keep old code in conditional branches of your code forever. High cost of ownership. |
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