This document specifies the process that Certification Authorities (CAs) and Relying Parties (RPs) participating in the Resource Public Key Infrastructure (RPKI) will need to follow to transition to a new (and probably cryptographically stronger) algorithm set. The process is expected to be completed over a timescale of several years. Consequently, no emergency transition is specified. The tran...

This document specifies the process that Certification Authorities (CAs) and Relying Parties (RPs) participating in the Resource Public Key Infrastructure (RPKI) will need to follow to transition to a new (and probably cryptographically stronger) algorithm set. The process is expected to be completed over a timescale of several years. Consequently, no emergency transition is specified. The tran...

Design, construction, maintenance and upgrading of civil engineering infrastructure requires fresh thinking to minimize use of materials, energy and labour. This can only be achieved by understanding the performance of the infrastructure, both during its construction and throughout its design life, through innovative monitoring. Advances in sensor systems offer intriguing possibilities to radic...

Almost all of electric utility companies are planning to improve their management automation system, in order to meet the changing requirements of new liberalized energy market and to benefit from the innovations in information and communication technology (ICT or IT). Architectural design of the utility management automation (UMA) systems for their IT-enabling requires proper selection of ...

In this report, we present the outcomes of exercising a design trajectory in respect of the modelling of an educational information infrastructure. The infrastructure aims to support the organisation of teaching and learning activities, independently of any particular didactic policy. The design trajectory focuses on capturing invariant structures of relations between entities in educational or...

Flexibility is an important performance indicator of any engineered system, yet a term often vaguely defined in the infrastructure domain. We have identified that though infrastructures often have more complex external interactions than process systems; infrastructure flexibility could still be dealt with in the existing process systems engineering (PSE) framework if a proper conceptual definit...

Infrastructure software comprises code libraries or runtime processes that support the development or operation of application software. A particular infrastructure system may support certain styles of application, and may even determine the features of applications built using it. This poses a challenge: although we have good techniques for designing and evaluating interactive applications, ou...