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A temporal XML database could become an inconsistent model of the represented reality after a retroactive update. Such an inconsistency state must be repaired by performing corrective actions (e.g. payment of arrears after a retroactive salary increase) either immediately (i.e. at inconsistency detection time) or in a deferred manner, at one or several chosen repair times according to application requirements. The purpose of this work is to deal with deferred and multi-step repair of detected data inconsistencies.

A general approach for deferred and stepwise repair of inconsistencies that result from retroactive updates of currency data (e.g. the salary of an employee) in a valid-time or bitemporal XML database is proposed. The approach separates the inconsistency repairs from the inconsistency detection phase and deals with the execution of corrective actions, which also take into account enterprise’s business rules that define some relationships between data.

Algorithms, methods and support data structures for deferred and multi-step inconsistency repair of currency data are presented. The feasibility of the approach has been shown through the development and testing of a system prototype, named Deferred-Repair Manager.

The proposed approach implements a new general and flexible strategy for repairing detected inconsistencies in a deferred manner and possibly in multiple steps, according to varying user’s requirements and to specifications which are customary in the real world.

The economic recession in the USA during the late 1980s and early 1990s resulted in many organizations putting off scheduled maintenance of their physical plants. This has resulted in an enormous deferred maintenance backlog that companies are just beginning to attack. Software products are beginning to appear that take the building deficiency data collected during a physical audit and combine it with other data such as cost spreadsheets, financial investment models and computeraided facilities management (CAFM) software. Such integrated software, which can incorporate multimedia information, is proving to be a powerful forecasting and strategic planning tool for management. Describes the technology involved in conditions assessment and how it is being used for real property and facility assessment purposes.

Service providers often recommend unnecessary and expensive services to unsuspecting consumers, such as recommending a new part when a simple fix to the old will do, a phenomenon known as overprovisioning. The purpose of this paper is to examine to what extent consumers tend to defer their decisions should they suspect that sellers are overproviding services to them and they cannot prevent the sellers from doing so (they lack personal control); and how proper market signals can mitigate such suspicions, restore personal control and reduce deferrals.

The paper conducts three laboratory experiments. The experiments expose the participants to hypothetical repair scenarios and measure to what extent they suspect that sellers might be overproviding services to them and they feel that they lack the personal control to prevent the sellers from doing so. Thereafter, the experiments expose them to two different market signals, one conveying that the seller is providing quality services (a repair warranty; quality signal) and the other conveying that the seller is taking away any incentives their agents (technicians) may have to overprovide services (the technicians are paid a flat salary; quantity signal). The paper examines how these quality/quantity signals are able to reduce overprovisioning suspicions, restore personal control and reduce decision deferrals.

The paper has two main findings. First, the paper shows a mediation process at work i.e. suspecting potential overprovisioning by sellers leads consumers to defer their decisions indirectly because they feel that they lack personal control to prevent the sellers from doing so. Second, the paper shows that the quantity signal (flat salary disclosure), but not the quality signal (warranty), is able to mitigate suspicions of overprovisioning, restore personal control and reduce decision deferrals.

The paper suggests that although buyers may rely on quality signals to assure them of superior service, these signals do not guarantee that the quantity of service they are receiving is appropriate. Therefore, sellers will have to send a credible quality signal and a credible quantity signal to the consumers if they wish to tackle suspicions about service overprovision and service quality.

The paper is original in two ways. First, the paper theorizes and tests a mediation process model whereby quality/quantity signals differentially mitigate overprovisioning suspicions, restore personal control and reduce decision deferrals. Second, the paper speaks to the necessity of expanding the traditional signaling literature, designed primarily to detect poor quality hidden in the products/services of lower-quality sellers, to include detecting/solving overprovisioning often hidden in the services provided by higher-quality sellers.

The purpose of this paper is to present a conceptual risk assessment technique to aid facility managers with developing robust asset management programs. It proposes to evaluate three discrete risk sensitivity levels relative to the recognition of stochastic costs on expected budgetary outcomes. The paper expands the domain of available risk assessment techniques toward estimating impacts from uncertainty on desired levels of service.

The paper explores the concept that facility managers can cost‐effectively manage robust asset management programs. This is accomplished by evaluating simple relationships between risk‐sensitive decision‐response alternatives and systems degradation characteristics. The resulting parameters are aggregated to estimate expected budgetary outcomes for robust asset management programs.

The paper reveals that if facility managers assume risk‐avoidance positions, they can positively affect expected budgetary outcomes for robust asset management programs. Facility managers can manage the magnitude of these adverse impacts by mitigating stochastic costs associated with the completion of unscheduled asset management activities.

The expected implications are enhancements to the abilities of facility managers to cost‐effectively manage stochastic costs relative to risk sensitivity and desired levels of service. However, because of the chosen research approach, the research results may lack general usability. Therefore, researchers are encouraged to test the proposed propositions further.

The practical implications allow facility managers to cost‐effectively manage adverse impacts on expected budgetary outcomes for robust asset management programs.

The expected contribution is a tool for facility managers to manage uncertainty when allocating limited financial resources among the competing corrective, maintenance, and rehabilitation activities within robust asset management programs.

The paper fulfills an identified need to study how facility managers can do more with less. This need to be cost‐effective requires facility managers to recognize stochastic costs on the expected budgetary outcomes for robust asset management programs.

Some historic observations With the exception of our prehistoric and primitive stone built ‘homes’ such as Chysauster and Cam Euny hut circles in Cornwall, the cromlechs, dolmens and stone circles at Avebury and Stonehenge, it was the Romans who introduced fine and sturdy stone construction into our country. The Anglo‐Saxons left many fragments of their crudely dressed stone towers and chancels of their churches, which have survived due to their robust construction. The timber construction of the Dark Ages gave way to stone again and to the gradual establishment of the craft of the stonemason.

Union Membership for Professional Employees Although Mr. Bumble (Oliver Twist) may have been right when he said that the law is an ass, a recent decision by the Lords of Appeal (see also this feature, Winter 1971 issue) has demonstrated that the judiciary is well able to exhibit a fine disregard for precedents when to follow them might well result in a denial of natural justice.

Non‐Voting Shares The non‐voting share has for some years been a target for the wrath of financial journalists and other commentators and it again became a live issue during the recent dispute involving shareholders and the directors of Savoy Hotel Ltd.

The purpose of this paper is to compare public preferences for investment and spending on non-automobile infrastructures (mass transit and bicycling) to preferences for new roads and the repair of current highways. The study explores the factors that explain preferences for non-automobile infrastructure using a three-factor model including self-interest (personal transportation benefits), concern for community-wide benefits (political beliefs), and concern for the economic impact. The study uses a case study of the urban context of the Hampton Roads region of Southeastern Virginia (USA).

The analysis uses data from a 2013 telephone survey of urban residents in the Hampton Roads area. Survey respondents were asked to identify their two investment priorities from four options: repairing existing roads, bridges, and tunnels; constructing new or expanding roads, bridges, and tunnels; expanding mass transit; and expanding bicycle routes and improving bike safety.

Repairing existing highway infrastructure is the most popular spending priority (66 percent of residents). There is as much support (46 percent) for investing in non-automobile infrastructure as for investing in new roads, bridges, and tunnels. Significant predictors of support for non-automobile infrastructure, using the three-factor model, are: length of commute time, self-identification as liberal, use of light rail, and a belief that light rail contributes to economic development.

The study examines public preferences for both non-traditional and traditional transportation infrastructure investments. It highlights the factors that contribute to public support for different transportation spending options.