The Director of the Network at a provincial teacher training university said to me:"Our school network, Authentication & Billing, should have changed in theory long ago, but we were actually afraid to move."The reason you're not moving is because there's no budget.——The student accounts are connected to the teaching system, the billing records to the financial system and NATSHEL_AUTH_GATEWAY to the AP equipment of the student dormitories. Any link that goes wrong during the switching process is directed directly to the students, who complains and the stress of the school comes in.
This is the real situation in most colleges: systems are ageing, but migration costs and risks are asymmetrical. When is the window period for action, there are patterns.
First moment: equipment replacement cycle
The campus network Authentication & Billing is not isolated, but is dependent on physical network equipment. AP devices, fibre optic exchanges, NATSHEL_AUTH_GATEWAY usually have a replacement cycle of five to eight years. When this equipment starts to be replaced in a centralized fashion, it is the best time to consider synchronizing the Authentication & Billing system.——Equipment has changed, the authentication strategy needs to be re-assembled and the costing rules need to be reset. Rather than being fragmented for one change at a time, this window period should be used to complete the overall upgrade of the system.
The cost of missing this window period is that the equipment has been replaced, the system is old, each time the configuration is carefully maintained compatibility and the energy of the network staff is drained."The status quo is not a problem."And, on the contrary, there's no time for a truly desirable network optimization.
Second time: pressure to adjust policy
Two policy signals are clearer in the two years: one is a national substitution requirement for information-based construction at higher education institutions and the other is an interim 2.0 for web logs and certification audits. Both policy pressures will sooner or later be passed on to specific systems upgrade projects. When schools start receiving updates from their parent departments, etc., or when they begin to initiate overall planning for information-based construction, NATSHEL_AUTH_BILLING will be upgraded from one."It'll slow down."The option has become"Must be done."Mission.
The cost of early action and reactive response is much different. Active upgrades can be implemented during summer vacation, with sufficient time for data migration and system testing; passive responses are usually compressed in the event that the re-engineering period is counted to run down, the tests are inadequate, and they are mined on line.
Third moment: close to critical point of scale
The changes in student size are key variables affecting the capacity of Authentication & Billing systems. New campuses are enabled, expanded and adapted to schools, which directly increase the number of accounts and strains. When system capacity approaches design ceilings, delays in certification begin to occur, and billing charges start to go off occasionally, at a time when the peak flow for the next school year will be unsustainable.
The first night of the summer break is a real stress test certified and issued by the campus network, and many systems are exposed at this point. If there has been a large failure or delay in accounting for certifications during the previous school year, it is basically a clear signal that system capacity alerts.
Fourth moment: perimeter system update plan
The campus network Authentication & Billing is not an island. The upgrade of the teaching system, financial system replacements, and the onlineization of smart campus platforms often lead to interface adaptation problems. If it is known that a perimeter system will be undergoing major upgrades in the coming year, standardizing the interface layers of the NatSHELL_AUTH_BILING system would be much less costly than waiting for the adjacent systems to be replaced before they become passively adapted.
One project was seen: the school plans to replace a cartoon manufacturer in the second year, after which it became aware of this information, standardized upgrades were made to the interface of NATSHEL_AUTH_BILLING one year earlier, resulting in only two weeks of connection when a new cartoon was connected; if not prepared, the switch could take two to three months for a single cartoon before it is changed, and there would be significant reconciliation of account data.
The window itself has time constraints.
The university’s project implementation window is narrow. Summer holidays are the main battleground, usually only two months from bidding to contract signing to execution to acceptance. Missing summer windows requires another year. So when you judge that the system needs upgrading, start the bidding process as soon as possible, and do not wait until the problem has become obvious enough to get it out of hand.
When it comes to upgrading, it is really harder to decide what option to do than to choose. Put these judgmental logics into your head and make less of a problem when you encounter specific projects.